THORAX ABDOMEN AND PELVIS

MEDICAL

GALLBLADDER AND EXCRETORY SYSTEM OF THE LIVER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Excretion of CO2 occurs in the
A
liver
B
lungs
C
large intestine
D
small intestine
Explanation: 

Detailed explanation-1: -In the human body, carbon dioxide is formed intracellularly as a byproduct of metabolism. CO2 is transported in the bloodstream to the lungs where it is ultimately removed from the body through exhalation.

Detailed explanation-2: -The only organ(s) capable of exhalation are the lungs. You inhale air, which contains, oxygen. Exhalation breathes out the carbon dioxide, which is a waste product, that has been produced in your body. Water in the form of water vapor is also exhaled as the lungs are moist.

Detailed explanation-3: -Carbon dioxide can be transported through the blood via three methods. It is dissolved directly in the blood, bound to plasma proteins or hemoglobin, or converted into bicarbonate. The majority of carbon dioxide is transported as part of the bicarbonate system. Carbon dioxide diffuses into red blood cells.

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